Connecting assembly of lamp shell and sheet metal part

Abstract

The utility model discloses a connecting assembly of a lamp housing and a sheet metal part, which is characterized by comprising a connecting seat in threaded connection with the lamp housing, a connecting ring in threaded connection with the connecting seat, a connecting cover in clamping connection with the connecting ring, and a mounting nail penetrating through the sheet metal part, the connecting cover, the connecting ring and the connecting seat to enable the four parts to be matched, a nut is arranged in the connecting seat, the mounting nail is in threaded connection with the nut, a contraction section is arranged in the connecting cover, and the contraction section is in interference fit with the mounting nail. The connecting structure has the advantages of being simple and reasonable in structure, good in connecting stability and convenient and fast to install.

Description

Technical Field

[0001] This utility model relates to the field of automotive lighting installation technology, and more specifically to a connection component between a lamp housing and a sheet metal part. Background Technology

[0002] In the automotive installation field, the connection components between the lamp housing and the body sheet metal parts are a core element ensuring the functionality, safety, and overall quality of the lamps and the vehicle. Traditional automotive lamp connection solutions mostly use bolted connections or metal clip structures. Bolt tightening requires pre-tapping threads on thin-walled sheet metal parts, and tightening nuts and bolts is cumbersome, difficult to operate due to limited internal space, resulting in low assembly efficiency and easy stripping of threads. Metal clip structures are relatively fixed, but their strength is not as good as bolts, and they are prone to connection failure under long-term vibration, leading to increased gaps, affecting sealing, and causing problems such as water leakage or optical path misalignment. Therefore, this invention provides a connection component to solve the above problems. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a connection component between a lamp housing and sheet metal parts, which has the advantages of simple and reasonable structure, good connection stability, and convenient and quick installation.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a connection assembly between a lamp housing and a sheet metal part, including a connecting seat threadedly connected to the lamp housing, a connecting ring threadedly connected to the connecting seat, a connecting cover engaging with the connecting ring, and a mounting pin that passes through the sheet metal part, the connecting cover, the connecting ring, and the connecting seat to mate the four parts. A nut is provided inside the connecting seat, and the mounting pin is threadedly connected to the nut. A shrinkage section is provided in the connecting cover, and the shrinkage section is interference-fitted with the mounting pin.

[0005] The present invention is further configured such that: the connecting cover is provided with an anti-retraction buckle with an open structure, the connecting ring is provided with an oblique groove and an anti-retraction step, and the anti-retraction buckle is inserted into the anti-retraction step along the oblique groove to form a locking connection.

[0006] The present invention is further configured such that: a nut groove is provided in the connecting seat, and a notch adapted to the circumferential direction of the nut is provided in the nut groove; the nut is installed in the nut groove and is circumferentially fixed by the notch.

[0007] The present invention is further configured such that: a protruding ridge is provided in the nut groove, and the protruding ridge is interference-fitted with the nut.

[0008] The present invention is further configured such that the contraction segment is symmetrically arranged in two sections.

[0009] The present invention is further configured such that the shrinking section is a sheet-like structure and has an arc-shaped surface adapted to the outer surface of the mounting nail.

[0010] The present invention is further configured such that the axial distance between the connecting ring and the connecting seat is adjustable via a thread.

[0011] In summary, this utility model has the following beneficial effects:

[0012] Compared with the prior art, this utility model incorporates a mounting pin that integrates the sheet metal part, connecting cover, connecting ring, and connecting seat into a single unit. The connecting cover has a contraction section; after the mounting pin is tightened, the contraction section applies a clamping force to the mounting pin, preventing it from loosening and improving connection stability. Simultaneously, the connecting ring and connecting seat are threaded together, allowing for axial adjustment of the distance the connecting ring is screwed into the connecting seat. The connecting cover, in turn, is snapped onto the connecting ring, enabling adjustment of the connecting cover's axial distance to accommodate installation needs at different shapes and locations on the sheet metal part, thus enhancing its versatility. Attached Figure Description

[0013] Figure 1 It is a schematic diagram of the overall structure of sheet metal parts, lamp housings and connecting components.

[0014] Figure 2 This is a schematic diagram of the cross-sectional structure of the connecting component.

[0015] Figure 3 This is a schematic diagram of the three-dimensional structure of the connecting components.

[0016] Figure 4 This is a schematic diagram of the exploded structure.

[0017] Figure 5 This is a schematic diagram of the connecting cover structure.

[0018] Figure 6 This is a schematic diagram of the connecting ring structure.

[0019] Reference numerals: 1. Connecting seat; 101. Nut groove; 2. Connecting ring; 201. Angled groove; 202. Anti-reverse step; 3. Connecting cover; 301. Retraction section; 302. Anti-reverse buckle; 4. Mounting pin; 5. Nut; 6. Notch; 7. Raised ridge; 8. Sheet metal part; 9. Lamp housing. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to the accompanying drawings.

[0021] This embodiment discloses a connection assembly between a lamp housing and a sheet metal part, such as... Figure 1-6As shown, the assembly includes a connecting seat 1 threadedly connected to the lamp housing, a connecting ring 2 threadedly connected to the connecting seat 1, a connecting cover 3 engaging with the connecting ring 2, and a mounting pin 4 that passes through the sheet metal part, connecting cover 3, connecting ring 2, and connecting seat 1 to mate the four parts. A nut 5 is provided inside the connecting seat 1, and the mounting pin 4 is threadedly connected to the nut 5. A contraction section 301 is provided in the connecting cover 3, and the contraction section 301 is interference-fitted with the mounting pin 4. Through the above structure, combined with... Figure 2 During assembly, first, thread the connector 1 and the lamp housing 9 together. Next, screw the connector 2 onto the connector 1. Then, insert the connector cover into the connector 2. Next, press the connector against the sheet metal part 8. Finally, from the outside of the sheet metal part 8... Figure 2 Insert the mounting pin 4 through the right side of the nut 5 and tighten the mounting pin 4 and nut 5. This axially secures the nut 5 and mounting pin 4, connecting the sheet metal part 8 and the lamp housing 9. The advantage is that the axial tightening force generated by the mounting pin 4 and nut 5 creates axial pressure on the threads between the connecting seat 1 and the lamp housing 9, and between the connecting ring 2 and the connecting seat 1, preventing loosening of these threads. Simultaneously, the connecting cover 3 has a shrinkage portion 301 that presses against the mounting pin 4, making it less prone to circumferential rotation and loosening. Therefore, the structure of this embodiment forms an interlocking-like fit, resulting in excellent connection stability of the connecting components. Furthermore, the structure is simple, reliable, and easy to assemble and disassemble.

[0022] Furthermore, refer to Figure 4-6 The connecting cover 3 is equipped with an anti-retraction buckle 302 with an openable structure. The connecting ring 2 has an oblique groove 201 and an anti-retraction step 202. The anti-retraction buckle 302 engages with the anti-retraction step 202 along the oblique groove 201 to form a locking connection. Simultaneously, the axial distance between the connecting ring 2 and the connecting seat 1 is adjustable via a thread. By adopting the above-mentioned split structure, the connecting ring can be installed first during installation, making it easier to adjust the screw depth of the connecting ring 2. After the connecting ring 2 is installed, it can be quickly snapped into the connecting cover, and a stable locking connection is formed by the anti-retraction buckle. This split structure also allows for the replacement of connecting rings 2 of different specifications for assembly, better adapting to the connection of sheet metal parts and lamp housings. For details, refer to... Figure 1 Because the sheet metal parts are irregularly shaped, the connecting assembly needs to be slightly adjusted in length to ensure a better connection between the lamp housing and the sheet metal parts. In this case, a slight adjustment to the screw-in depth of the connecting ring is sufficient to meet the installation requirements. Traditional bolt connections, in this situation, can only be made to screw the bolts in deeper, which can easily lead to inward deformation of the sheet metal parts. However, in this embodiment, the connecting ring 2, together with the connecting cover 3, can press against the sheet metal parts 8 from the inside out. After the mounting pin 4 is screwed in, it presses against the sheet metal parts 8 from the outside, providing support on both the inner and outer sides of the sheet metal parts 8 and preventing deformation.

[0023] Furthermore, refer to Figure 3-4 The connecting seat 1 has a nut groove 101, and the nut groove 101 has a notch 6 that is adapted to the circumference of the nut. The nut 5 is installed in the nut groove 101 and is circumferentially fixed by the notch 6. With the above structure, the nut is preferably a hexagonal nut, and the notch is set with a V-shaped notch. The hexagonal part can be inserted into the notch to fix it circumferentially. At the same time, a protruding rib 7 is provided in the nut groove 101. The protruding rib 7 is interference-fitted with the end face of the nut 5 to provide clamping force, so that the nut can be locked after entering the nut groove 101.

[0024] Furthermore, to ensure balanced clamping force of the shrinkage section 301 on the mounting pin 4, the shrinkage section 301 is symmetrically arranged in two sections, clamping from both sides to ensure center alignment of the mounting pin 4. The shrinkage section 301 is preferably a sheet-like structure with an arc-shaped surface adapted to the outer surface of the mounting pin, which increases the contact area with the mounting pin 4 and better clamps it. Moreover, during the screwing-in process of the mounting pin, since the shrinkage section 301 is a plastic part, it can undergo a certain degree of deformation without affecting the normal screwing-in of the mounting pin.

[0025] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the design concept of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A connection assembly between a lamp housing and a sheet metal part, characterized in that: It includes a connecting seat (1) that is threaded to the lamp housing, a connecting ring (2) that is threaded to the connecting seat (1), a connecting cover (3) that engages with the connecting ring (2), and a mounting pin (4) that passes through the sheet metal part, the connecting cover (3), the connecting ring (2) and the connecting seat (1) to fit the four parts. A nut (5) is provided inside the connecting seat (1), and the mounting pin (4) is threaded to the nut (5). A shrinkage section (301) is provided in the connecting cover (3), and the shrinkage section (301) is interference-fitted with the mounting pin (4).

2. The connection assembly between the lamp housing and the sheet metal part according to claim 1, characterized in that: The connecting cover (3) is provided with an anti-retraction buckle (302) in a spreading structure. The connecting ring (2) is provided with an oblique groove (201) and an anti-retraction step (202). The anti-retraction buckle (302) is inserted into the anti-retraction step (202) along the oblique groove (201) to form a snap-fit ​​connection.

3. The connection assembly between the lamp housing and the sheet metal part according to claim 1, characterized in that: The connecting seat (1) is provided with a nut groove (101), and the nut groove (101) is provided with a notch (6) that is adapted to the circumferential direction of the nut. The nut (5) is installed in the nut groove (101) and is circumferentially fixed by the notch (6).

4. The connection assembly between the lamp housing and the sheet metal part according to claim 3, characterized in that: The nut groove (101) is provided with a protruding ridge (7), which is interference-fitted with the nut (5).

5. The connection assembly between the lamp housing and the sheet metal part according to claim 1, characterized in that: The contraction section (301) is symmetrically arranged in two segments.

6. A connection assembly between a lamp housing and a sheet metal part according to claim 1 or 5, characterized in that: The contraction section (301) is a sheet-like structure and has an arc-shaped surface that fits the outer surface of the mounting pin.

7. The connection assembly between the lamp housing and the sheet metal part according to claim 1, characterized in that: The axial distance between the connecting ring (2) and the connecting seat (1) can be adjusted by means of a thread.

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